Gojita is the result of Gokou and Vejita fusing using the Fusion Dance. Although this type of fusion only lasts thirty minutes, it's more than enough time to thoroughly kick bad guy ass. In this fusion, Gojita has many of the physcial characteristics of Vejita, but the mindset of Gokou.

The first time Gojita appeared was in Movie #12, against Janenba and they went straight to SSJ Gojita. Gojita had one of the cooler entrances, and his aura was so cool looking. He wasn't there too long, probably because of time constraints, but he wasted no time in kicking Janenba's ass with some flashy moves, and then finishing him off with a new Ki attack never before seen.

The second time Gojita appeared was near the end of Dragon Ball GT. Since Gokou and Vejita were both Super Saiyajin Four at the time, Gojita was, too. And for some reason Gojita had red hair, this is thought to be some sort of side effect from the fusion. Since it was DBGT they killed Gojita totally (not literary). He had no cool introduction, no awesome aura. He came in, said almost the exact same thing he said in DBZ Movie #12, did a Big Bang Kamehameha that did nothing, and then got his ass kicked. Pretty lame if ya ask me.